Apparatus for beading and curling sheet-mefal vessels



(No Model.) 3 Sheets-Sheet 1.

G. I. HOLDSHIP. APPARATUS FOR BEADING AND GURLING SHEET METAL VBSSELS.

No. 487,529. Patented Dec. 6, 1892.

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G. I. HOLDSHIP. APPARATUS FOR BEADING AND OURLING SHEET METAL VESSELS.

No. 487,529. Patented Dec. 6, 1892.

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G. I. HOLDSHIP.

APPARATUS FOR READING AND GURLING SHEET METAL VESSELS.

No. 487,529. A Patented Dec. 6', 1892.

UNITED STATES PATENT OFFICE.

GEORGE I. HOLDSHIP, OF ALLEGHENY, PENNSYLVANIA.

APPARATUS FOR BEADING AND CURLING SHEET-METAL VESSELS.

SPECIFICATION forming part of Letters Patent-No. 487,529, dated December6, 1892. I Application filed-July 11, 1892. Serial No. 439,672. (Nomodel.)

T0 00% whom it may-concern.-

Be it known that I, GEORGE IRWIN HOLD- SHIP, of Allegheny city, in thecounty of Allegheny and State of Pennsylvania, have invented a new anduseful Improvement in Apparatus for Beading and Curling Sheet-MetalVessels, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forming part of thisspecification, in which- Figure 1 is a top plan view of my improvedmachine. Fig. 2 is a side elevation thereof; and Figs. 3 and tare detailviewsillustrating the operation of the machine, the headingrollers inFig. 3 being shown separated and those in Fig. 4 brought together uponthe periphery of an interposed can.

The stepsin the manufacture of sheet-metal vesselssuch as pails, cans,&c.to which my invention relates are the operations of beading (formingan ornamental groove or bead around the periphery) and curling the edge,(an operation intended to stiffen the vessel and to render it moredurable.)

The objects of my invention are, first, to provide a machine by whichboth these steps may be performed by simple and easily-operatedmechanism at one operation to better advantage than has been possiblewith apparatus heretofore known, and, second, to provide improvedcurling mechanism which may be used with or without beading mechanismand the specific advantage of which is that it can be used in curlingthe-edges of cans of various diameters. The beading mechanism which I amabout to describeis of a type heretofore used. The curling mechanism isnot only broadly new in its combination with beading-rollers, but inconstruction it is specifically new irrespective of such combination.

In the drawings, 2 indicates the swinging shaft, whose bearing ispivoted at 3 to the framework of the machine and which carries at itsouter end the beading-roller 4t. From the rear end of this shaft abovethe pivot extends the bar 5, which is parallel with the shaft and at itsouter end is provided with a laterally-extending bar 6, connected to afoottreadle by a chain 7. The shaft is held normally in remote positionfrom the other shaft (hereinafter described) by a spring 8, secured to ahook 9 at the end of the bar 5 and to a vertical extension 10 of theframe of the machine.- To the shaft 2 is secured the gear-wheel 11,which meshes with asimilar wheel 12 upon a horizontal shaft 13, theshaft 2 passing through the usual sliding bearing-block 14 in the frameof the machine. The shaft 13 has at its outer end a beading-roller15,Whose periphery is the counterpart of the periphery of the roller 4,and at its inner end projecting beyond the frame the shaft is providedwith a driving-pulley 16. Upon a forwardlyprojecting plate 17, securedto the frame at one side of the shafts, is pivoted a lever 18, having ashort vertical post 19 near its fulcrum, to which a cross-head 20 issecured by a screwthreaded rod 21, which passes through the cross-headand terminates in a bearingblock 22, fitting in a recess in the front ofthe cross-head. The block 22 carries the curlingwheel 23, pivotedtherein, and the cross-head is provided with a hole in its lowerportion, through which the shaft 13 projects, and with a slot in itsupper portion, through which the shaft 4 passes and Within which itswings vertically. It is best to set the curling-roller block on theseshafts, since they serve as guides therefor and cause the curling-grooveto engage the cans edge precisely at the proper point.

A stop-plate 2% is held in the rear of the beading-rollers, this platebeing slotted for the passage of the curlingand beading wheels and beingadjusted to any desired position by rods 25, passing through the frameand held by set-screws 26. The lever 18 may be pivoted at either of thepoints 26 or 27 upon the plate 17, as desired. I

The action is as follows: The can is placed upon the roller 15, as shownin Fig. 3, so that its periphery at the line to bebeaded shall bebetween the two rollers. The roller 4 is then depressed, so as to engagethe can, as shown in Fig. 4, whereupon the revolution of the rollerswill rotate the can and will form a head around its periphery in theusual manner. The edge of the-can projects beyond the ends of therollers at right angles thereto, being held in such position by theplain marginal rim on the rollers shown in the drawings. During thisbeading operation the edge of the can is curled by means of the roller23, which the workman brings into contact therewith by operation of thehand-lever and which is pressed against the edge in line with theprojecting portion of the cans side. (See Fig. at.) The rotation of thecan in contact with the curling-roller turns over or curls the cansedge, the beading-rollers meanwhile serving as a mandrel to hold the canagainst the action of the curling-roller.

The advantages of my invention will be appreciated by those skilled inthe art.

The apparatus is simple in construction, durable, and does not requirespecial skill for its operation.

By means of the machine constructed as above described the beading andcurling are performed at once. This makes it possible to produce a canheaded and curled at no greater cost than that required in themanufacture of cans which are merely beaded. Furthermore, the machine isadapted to be used without adjustment in the treatment of cans of anysize within certain limits. This is due to the employment of asingle-grooved cnl'lingroller, and this I intend to claim, broadly, incombination with rollers which grasp the can at a point opposite to thecurling-roller, so as to hold the can with its edge projecting at rightangles against the action of the latter, whether these rollers begrooved so as to bead the can or not, since a machine with ungroovedholding-rollers, while not so desirable as the machine illustrated inrespect of the simultaneous accomplishment of the beading and curling,is better than curling-machines heretofore known in respect of itscapacity for use without adjustment.

The direction in which the edge is curled, whether to the inside oroutside of the can, is determined by the part of the peripheral grooveof the curling-roller which engages the cans edge. The roller isadjusted so that the edge of the can shall engage the groove at a pointto one side of the middle of the groove, and the edge is then curledtoward the opposite side.

By forming the curling-roller with a pcripheral groove substantiallysemicircular in cross-section the edge of the can is curled, and byforming the groove with one side flat or open a flange may be producedon the can. Thus by varying the shape of the curling roller thecharacter of work done by the ma chine maybe correspondingly varied,while the size of the groove determines the size of the curl or flangeproduced thereby. By the word curling used in the specification andclaims I intend to denote, also, the operation of fianging or otherwiseshaping the edge of the can by a grooved roller working on the edge ofthe can substantially in line withthe projecting side thereof.

The beading-rollers and their auxiliary mechanism uncombined with thecurlingroller are old, and therefore without departure from my inventionthese parts may be varied in construction and arrangement. One

or both of the beading-rollers may be driven. The mechanism foroperating the curlingroller may also be modified, since What I claimis-- 1. The combination of rollers adapted to engage and hold theperiphery of a can or vessel and to present the edge thereof projectingsubstantially at right angles and a curlingroller adapted to engage theextreme edge of the can or vessel opposite to the place of engagement ofsaid rollers and to exert thereon pressure substantially in line Withthe cans side, substantially as and for the purposes described.

2. The combination of rollers adapted to engage and hold the peripheryof a can or vessel and to present a projecting edge thereof and agrooved curling-roller adapted to engage the extreme edge of the can orvessel opposite to the place of engagement of said rollers,substantially as and for the purposes described.

3. The combination of grooved beadingrollers adapted to engage and holdthe periphery of a can or vessel and to present a projecting edgethereof and a grooved curlingroller adapted to engage the extreme edgeof the can or vessel, substantially as and for the purposes described.

4-. A machine having beading-rollers set on shafts separable at theirouter ends to permit setting of the can or vessel to be treated and acurling-roller set opposite to the inner ends of the rollers between theshafts thereof and movable to engage the projecting edge of the can orvessel, substantially as and for the purposes described.

5. A machine having beading-rollers and a curling-roller having acarrier set on at least one of the shafts of the beading-rollers, whichserves as a guide therefor, and movable on said shaft to engage the cansedge, substantially as and for the purposes described.

6. A machine having beading-rollers anda curling-roller havingacarrierset on the shafts of the heading rollers, whichserve as a guidetherefor, and movableon said shafts to engage the cans edge,substantially as and for the purposes described.

7. The combination of rollers adapted to engage and hold the peripheryof a can or vessel and to present the edge thereof projectingsubstantially at right angles, a curlingroller adapted to engage theextreme edge of the can or vessel and to exert thereon pressuresubstantially in line with the caus side,"

and a stop by which the degree of projection of the can is limited,substantially as and for the purposes described.

In testimony whereof I have hereunto set my hand this 30th day of June,A. D. 1892.

GEORGE I. HOLDSHIP.

Witnesses:

THOMAS W. BAKEVVELL, GUY O. Doscn, A. D. WILSON.

